钢缆输送机制动装置的完好标准是什么?

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问题:

钢缆输送机制动装置的完好标准是什么?

考点:矿钢缆皮带操作工矿钢缆皮带操作工试题库(高级)矿钢缆皮带操作工试题库(高级)题库
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化学可以帮助人类认识、改造周围的世界,促进社会发展。

(1)下列物品中能提供丰富蛋白质的是  ;属于有机合成材料的是  。(填字母序号)

A            B           C            D              E            

(2)微量元素对人体健康的影响很大,如缺   元素会引起贫血。

(3)将浑浊的河水用右图所示的简易净水器进行净化,其中活性炭的作用是    

(4)化学与生活密切相关,下列说法正确的是     。(填字母序号)

A.可用甲醛溶液浸泡食用海产品以保鲜

B.可用灼烧并闻气味的方法区别纯棉织物和羊毛织物

C.煤气中毒的原因是:一氧化碳会与血液中的血红蛋白结合,使人窒息死亡

D.大米发霉会产生黄曲霉素,此物质会损害人的肝脏,因此霉变大米不能食用

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Some names have special meanings in popular American expressions. One day, an average Joe was walking down the street. An average Joe is a common person – either male or female. He did not know where he was going. So average Joe asked John Q. Public for directions to the nearest bank. John Q. Public is also a common person – male or female. “Jeez Louise,” said John Q. Public. This is an expression of surprise. “Don’t you know that all banks are closed today? It is Saturday.”

“For Pete’s sake.” said average Joe. This is also an expression used to show a feeling like surprise or disappointment. “I do not believe you,” said he. At that moment, Joe Blow was walking down the street with a woman. Joe Blow is also an expression for a common person. Now this Joe Blow was NOT walking next to a plain Jane. A plain Jane is a woman who is neither ugly nor pretty. The woman with Joe Blow was a real Sheila – a beautiful woman.

Average Joe asked the woman if all banks were closed on Saturday. “No way, Jose,” she answered. This is a way of saying “no.” “No way, Jose. Many banks are open on Saturdays.”

Average Joe did not know either of these two people from Adam. That is, he did not know them at all. But he followed their directions to the nearest bank. [

When he arrived, he walked to the desk and said: “I am here to withdraw some money so I can pay my taxes to Uncle Sam”. This represents the United States government. The banker produced some papers and told him to sign his John Hancock at the bottom. A John Hancock is a person’s signed name – a signature. Historically, John Hancock was one of the signers of the United States Declaration of Independence. Hancock had a beautiful signature and signed his name larger than all the others.

45.The main idea of this text is that           .

A.some popular American names have special stories

B.some popular American expressions have some special names[

C.some popular American names have special meanings

D.some popular American expressions are interesting

46.Which of the following refers to an ordinary – looking woman?

A.A average Joe                                     B.John Q. Public

C.Joe Blow                                            D.A plain Jane

47.The name “Jeez Louise” is           .

A.an expression of surprise                      B.a feeling like disappointment

C.an expression for a common man          D.a woman who is neither ugly nor pretty

48.What does the banker really want to ask Joe to sign on the papers?

A.John Hancock.                                    B.United States Declaration.

C.His own name.                                    D.Uncle Sam.

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装设电抗器的目的是:增大短路阻抗,限制短路电流,减小电压波动。()

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为了研究光的传播,我们引入了“光线”,下列研究问题的方法与此相同的是: [ ]

A.通过小灯泡的亮暗,分辨电流的大小

B.通过磁感线研究磁场的分布

C.通过水流来学习电流

D.通过扩散现象感知分子的运动

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PC机的硬件性能是从多个方面进行衡量的,其中系统总线的传输速率也是一个重要的方面,它直接影响到计算机输A入/输出的性能,其度量单位是 【2】

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